Attachment for elastic tires.



No. 832,514. PATENTED OCT. 2, 1906 W. H. VIOLETT. ATTACHMENT FOB ELASTIG TIRES.

APPLIOATION FILED SEPT. 19. 1905.

v I7 1' E 5! y 8L INVEIVZOR WILLIAM H. \/|o| ,E TT

ATTORNEYS Unrrnn srarnii rnirnnr FFIGE.

ATTASHMENT FOR ELASTIC TERES- Specification of Letters Patent.

Patented Oct. 2, 1906.

' Application filed September 19,1905- Sierial No. 279,202.

To 10/] whom, it may (lo/worn:

Be it known that I, Wnmmn H. VroLE'rr, a citizen of the United States, residing at Meeker, in the county of Rio Blanco and State ofColorado, have made certain new and useful lmprovemer-its in iittaclnnents for Automobile and F'cyclc Tires, of which the following is a specification.

My invention is an improved attachment for rubber tires of automobiles and bicycles, whereby said tires are protected from punc ture and wear to which they are ordinarily liable.

The attachmcm enables" rubber tired wheels to run over rough roads and sharpedged stones or other obstructions without danger of injury, and it also provides a bot ter hold. on the ground than is practicable with smooth tires.

The details of construction, arrangement, and combination of parts are as hereinafter described, and illustrated-in accompanying drawings, in which Figure 1 is a transverse radial section of an inflated rubber tire provided with my improved attachment. Fig. 2 is a perspective view of certain portions of the attachment disassociated. Fig. 3 is a plan view of the attachment proper. Fig. 4 is an enlarged detail section illustrating a modification. Fig. 5 is a side view of a modilied form of plug constii uting a part of the attachment.

lln Fig. l, A indicates an inflated rubber tire, 'wbicb may be of the usual construction and. seemed in a:. prcl'crred manner to an elastic tire ii, in which the spokes U of the vchiclc-rwbccl are scoured. My improved attachment comprises a thin metal tire D, which is practically semicircular-in cross-section and extends entirely around. the rubber tire A, it being so arranged as to inclose the outer portion of the latter and extend down on the sides thereof to a point a short distance above the middle. The attachment further includes projections E, which are applied to the sheathing or rotecting-tire D m such manner to stun out radially from the periphery of the tire A. As illustrated in Fig. 3, the metal tire or sheathing D is pro vided with a series of holes d,-which are arranged staggering onene being opposite the space between each two in the opposite row. In each of these openings d is arranged a plug whose construction is illustrated in Fig. i that is-to say, it consists of a body or metal portion e, which is a tube threaded at each end, a screw e, having a rounded head e, and a base-screw e having a flange 0 The tube is inserted in one of the openings (1 ol' the tire l), and the plug e is screwed into the lower end of the same, its base-flange 6* thus lying between the protector D and the rubber tire A, as shown in Fig. l. The plug e is in a similar manner screwed into the outer end of the tube 0, as is also indicated in F 1. There is thus provided around the entire supplemental tire or protector D a series of radial projections in the nature of removable plugs, which constitute the truc tread ol the tire. As shown in Fig. 4, the head c of the screw e may be conical instead of rounded, as shown in Figs. 1 and and the body 6'' and llanged base of the plug may be constructed integral, as shown. As shown in Figs. 1, and a, the outer side of the rubber tire A is l'lattened, and the sheath or protecting-tire D has a similar construction or form, so that the bases of the plugs rest upon a flat surface. It is to be understood, however, 'that the tire A may be so constructed that its outer side or periphery will describe in cross-section the are of a circle or, in other words, may be rounded in place of being flat, and in such case the protector D and the bases of the plugs will be made to conform thereto instead of flattened, as shown.

it is apparent that my improvement renders the rubber the far more durable than at present, since it prevents it from being worn or punctured, and. thus destroyed, as is now so often the ease, and, further, that the plugs take such a firm hold on the surface whereon the wheels run that slipping is )ractically impossible. I desire it understoo that I do not propose to restrict myself in all cases to the construction and attachment of the plugs here shown, but to adopt any suitable form and arrangement which will permit the plugs to be inserted and removed as conditions may require. The plugs may, in short, he made solid and without a flanged head, as illustrated in Fig. 5. I desire it 'lurthe'ifhn derstood that a spring bo l or cushion may pe provided for plugs between the tirr- A and the sheathing or protector..l)niulll at. the plu s may have any form, as round, polygona or oval in cross-section, as occasion de-- mands.

Having thus d cscribed in y invent ion, what I clain'i as new, and (lpslie to secure by Let ters Patent, is-

1. The i ombination, with an elastic wheeltire, of s protector comprising a metal sheath it flanged base and a, body which projects J from the sheathing and is threaded internally, and e screw-block inserted in said body, as shown and described.

- 3. The odfifbination with en tire and a metal sheathing provided with epera-tures, of removable plugs arranged in said apertures and comprising a hollow flanged body, and a detachable end portion, substem tielly as described.

- WILLIAi/l H. VIOLETT. Witnesses GEORGE E. RITCHIE,

FRED MUNRQ- elastic WllGGL 

